Puperías are traditional Mexican snack shops that specialize in selling "puperías," which are a type of tortilla-based dish typically filled with various ingredients, such as meats, cheese, and vegetables. These establishments often offer a variety of toppings and salsas, allowing customers to customize their orders. Puperías are popular for their quick, delicious meals and are commonly found in urban areas throughout Mexico. They play a significant role in local street food culture, providing affordable and flavorful options for people on the go.